README

Configuration options

$wgVectorPrintLogo

Logo used in print styles. Keys are url, width, and height (in
pixels). Note that this solution only works correctly if the image
pointed to by url is an SVG that does not specify width and height
attributes, or its width and height match the corresponding variables
below. Alternatively, a PNG or other type of image can be used, but
its dimensions also need to match the corresponding variable below.
That in turn may result in blurry images, though.